Struct pgn_reader::Nag

pub struct Nag(pub u8);

A numeric annotation glyph like ?, !! or $42.

Tuple Fields

0: u8

Implementations

impl Nag

pub fn from_ascii(s: &[u8]) -> Result<Nag, InvalidNag>

Tries to parse a NAG from ASCII.

Examples

use pgn_reader::Nag;

assert_eq!(Nag::from_ascii(b"??"), Ok(Nag(4)));
assert_eq!(Nag::from_ascii(b"$24"), Ok(Nag(24)));

Errors

Returns an InvalidNag error if the input is neither a known glyph (?!, !, …) nor a valid numeric annotation ($0, …, $255).

Trait Implementations

impl Clone for Nag

fn clone(&self) -> Nag

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Nag

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Nag

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<u8> for Nag

fn from(nag: u8) -> Nag

Converts to this type from the input type.

impl FromStr for Nag

type Err = InvalidNag

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Nag, InvalidNag>

Parses a string s to return a value of this type.

impl Hash for Nag

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Nag

fn cmp(&self, other: &Nag) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<Nag> for Nag

fn eq(&self, other: &Nag) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<Nag> for Nag

fn partial_cmp(&self, other: &Nag) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Nag

impl StructuralEq for Nag

impl StructuralPartialEq for Nag